Refer to the drawing of a water storage tank with a differential pressure (D/P) level detection system (see figure below).
Assume that the initial temperature of the reference leg and the water in the tank is 100°F, and that reference leg temperature does not change.
If the temperature of the water in the tank increases by 20°F, the D/P sensed by the detector will __________ if the __________ of the water in the tank is constant.
A. decrease; level
B. decrease; mass
C. remain the same; level
D. remain the same; mass
Share your understanding of this question with the correct explanation.